The electrocrystallization of nickel on vitreous carbon A kinetic and structural study of nucleation and coalescence |
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| Authors: | J Amblard M Froment G Maurin D Mercier E Trevisan-Pikacz |
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| Institution: | Groupe de Recherche No. 4 du C.N.R.S. “Physique des Liquides et Eletrochimie”, associéà I''Université Pierre et Marie Curie, 4, place Jussieu, 75230 Paris Cedex 05 France |
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| Abstract: | FeOOH deposition films were formed on gold electrodes by polarization in an electrolyte containing Fe2+. The time dependence of the formation current suggests a diffusion-controlled formation process. The oxidation of Fe(CN)64? at FeOOH films shows no Tafel-like behavior. It is assumed that the Fe2+ to form the film, as well as the Fe(CN)64? to be oxidized, have to diffuse through an adherent, strongly hydrous layer of Fe(OH)3 to the surface of FeOOH. |
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